linux将硬盘格式化为xfs文件系统

[root@zzw ~]# df -h
文件系统 容量 已用 可用 已用% 挂载点
devtmpfs 2.3G 0 2.3G 0% /dev
tmpfs 2.3G 0 2.3G 0% /dev/shm
tmpfs 2.3G 13M 2.3G 1% /run
tmpfs 2.3G 0 2.3G 0% /sys/fs/cgroup
/dev/mapper/centos-root 45G 20G 26G 44% /
/dev/sda1 1014M 184M 831M 19% /boot
tmpfs 466M 4.0K 466M 1% /run/user/42
tmpfs 466M 32K 466M 1% /run/user/1000
/dev/sr0 4.4G 4.4G 0 100% /run/media/zhao/CentOS 7 x86_64

[root@zzw ~]# umount /oracle

[root@zzw ~]# mkfs -t xfs /dev/lvmdisk/pldy1
mkfs.xfs: /dev/lvmdisk/pldy1 appears to contain an existing filesystem (ext3).
mkfs.xfs: Use the -f option to force overwrite.

[root@zzw ~]# mkfs -t xfs /dev/lvmdisk/pldy1 -f
no device name given in argument list
Usage: mkfs.xfs
/* blocksize / [-b log=n|size=num]
/ metadata / [-m crc=0|1,finobt=0|1,uuid=xxx]
/ data subvol / [-d agcount=n,agsize=n,file,name=xxx,size=num,
(sunit=value,swidth=value|su=num,sw=num|noalign),
sectlog=n|sectsize=num
/ force overwrite / [-f]
/ inode size / [-i log=n|perblock=n|size=num,maxpct=n,attr=0|1|2,
projid32bit=0|1]
/ no discard / [-K]
/ log subvol / [-l agnum=n,internal,size=num,logdev=xxx,version=n
sunit=value|su=num,sectlog=n|sectsize=num,
lazy-count=0|1]
/ label / [-L label (maximum 12 characters)]
/ naming / [-n log=n|size=num,version=2|ci,ftype=0|1]
/ no-op info only / [-N]
/ prototype file / [-p fname]
/ quiet / [-q]
/ realtime subvol / [-r extsize=num,size=num,rtdev=xxx]
/ sectorsize / [-s log=n|size=num]
/ version */ [-V]
devicename
is required unless -d name=xxx is given.
is xxx (bytes), xxxs (sectors), xxxb (fs blocks), xxxk (xxx KiB),
xxxm (xxx MiB), xxxg (xxx GiB), xxxt (xxx TiB) or xxxp (xxx PiB).
is xxx (512 byte blocks).
[root@zzw ~]# lvdisplay|grep Path
LV Path /dev/lvmdisk/pldy1
LV Path /dev/centos/swap
LV Path /dev/centos/root

[root@zzw ~]# mkfs.xfs /dev/lvmdisk/pldy1 -f
meta-data=/dev/lvmdisk/pldy1 isize=512 agcount=4, agsize=1309952 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=5239808, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0